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A single replacement reaction occurs when two different cations switch places to combine with the same anion. One element forms a compound while another element is released from the compound.

In a single replacement reaction, or single displacement reaction, a single uncombined element replaces another in a compound. Two reactants yield two products. For example when zinc combines with hydrochloric acid, the zinc replaces hydrogen.

Replacement Reactions

A+BC=B+AC

For instance, if magnesium is dropped into a solution of Copper (II) Nitrate, the magnesium will react because it is more active (in other words wants to bond more than the copper does).

If by chance you drop Copper into Potassium Acetate, you will find that no reaction will occur.

Reactivity of Metals (from most reactive to least)

Lithium

Barium

Potassium

Calcium

Sodium

Magnesium

Aluminum

Zinc

Chromium

Iron

Nickel

Tin

Lead

Hydrogen

Copper

Mercury

Silver

Platinum

Gold

1. Alkali metals will always replace hydrogen in cold water

2. Magnesium to iron on the chart will always replace hydrogen in steam

3. Mercury doesn't react with much of anything

4. Metals higher than Hydrogen will always replace it in an acid (Nitric acid, drop zinc (II) in it, and you will receive H2 + ZnCl2)

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Eudora Brekke

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3y ago

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Related Questions

What type of reaction is Zn plus CuCl2 Cu plus ZnCl2?

A single-replacement reaction


How do synthesis single replacement and double replacement reactions differ?

single replacement reaction


What is is a define single-replacement reaction.?

A single replacement reaction involve the replacement of an element with other in the molecule as in this model:A + B-C = A-C + B.


What is another name for a single replacement reaction?

Condensation Reaction.


Is Si Cl2 SiCl2 a single replacement reaction?

This is not a replacement reaction. And the silicon chloride is SiCl4.


How does single replacement occur in the industry?

Most batteries work via a single replacement reaction.


What type of chemical reaction is Mg 2 HCI MgCI2 H2?

Correctly represented, it's Mg + 2HCl --> MgCl2 + H2, and it's a single replacement reaction.


Is 2Fe 3Br-2FeBr3 a single-replacement reaction?

Yes, the reaction 2Fe + 3Br2 -> 2FeBr3 is a single-replacement reaction because iron is replacing bromine in the compound formed.


Is oxidation reaction a single replacement reaction?

It can be, but it can also be other types of reaction. An example of an oxidation reaction that is also a single replacement would be Zn(s) + 2HCl ==> ZnCl2 + H2. In this reaction Zn is oxidized and H is reduced.


Is single replacement reaction exothermic?

Single replacement reactions can be exothermic or endothermic, depending on the specific reactants and products involved. The heat change for each single replacement reaction must be evaluated individually to determine if it is exothermic or endothermic.


The type or reaction takes place when one element reacts with a compound to form a new compound and a different element is a?

it's single-replacement. I took a test with a question like that and got 100%


What the single replacement reaction of fe plus C2H3O2?

A single replacement reaction will not occur. In a single replacement reaction, either a metal will replace another metal in a compound, or an anion will replace another anion in a compound. Click on the related link to see the Wikipedia article on single displacement (single replacement).